Is PRG a valid technique in Phoenix?

[peerreynders]

@thiagomajesk

Update: Seems that the assigns are been cleaned after the redirect.

redirect(conn, to: Routes.resource_path(conn, :new))

sends the POST response back to the client.

The followup GET from the client is an entirely different request and therefore has a new conn with a fresh assign - nothing is getting “cleaned”.

You have to bridge the information between the two separate requests.

• Using the redirect the invaild form data could be transferred as query parameters in the redirect URL - though that’s hardly desirable.
• The create function could stick the invalid form data in the server side session to be retrieved by the new function to be used to initialize the changeset.